Implantable pump with adjustable flow rate
First Claim
1. A valve adapted to control the flow rate of fluid flow from an implantable pump, comprising:
- a multi-lumen member disposed within a housing and adapted to receive fluid-flow therethrough between a first end coupled to an inlet and a second end coupled to an outlet; and
a restrictor member that prevents fluid that is flowing from the inlet to the outlet from flowing through the restrictor member without blocking the inlet, the restrictor member extending across the housing and sealed around a perimeter of the housing, and the restrictor member being coupled to the multi-lumen member such that the restrictor member is effective to selectively restrict at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing through the multi-lumen member.
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Accused Products
Abstract
A valve that is adapted to control the flow rate of fluid flow from an implantable pump or other fluid delivery device is provided. In general, the valve includes a multi-lumen member that is adapted to receive fluid-flow therethrough, and a restrictor member that is coupled to the multi-lumen member such that the restrictor member is effective to selectively restrict at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing through the multi-lumen member. The valve can be built into an implantable drug pump to control fluid flow exiting the pump, or alternatively the valve can disposed within a catheter or otherwise coupled to an outlet port in an implantable drug pump to control the flow rate of fluid exiting the drug pump.
37 Citations
21 Claims
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1. A valve adapted to control the flow rate of fluid flow from an implantable pump, comprising:
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a multi-lumen member disposed within a housing and adapted to receive fluid-flow therethrough between a first end coupled to an inlet and a second end coupled to an outlet; and a restrictor member that prevents fluid that is flowing from the inlet to the outlet from flowing through the restrictor member without blocking the inlet, the restrictor member extending across the housing and sealed around a perimeter of the housing, and the restrictor member being coupled to the multi-lumen member such that the restrictor member is effective to selectively restrict at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing through the multi-lumen member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for controlling the flow rate of fluid being delivered to a patient from an implantable pump, comprising:
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providing a valve in fluid communication with a reservoir formed in an implantable pump, the valve including a multi-lumen member disposed within a valve housing and coupled to a restrictor member extending across the valve housing and sealed around a perimeter of the housing, the restrictor member preventing fluid flowing from an inlet to an outlet from flowing through the restrictor member without blocking the inlet, and selectively restricting at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing from the reservoir between a first end of the multi-lumen member coupled to the inlet and a second end of the multi-lumen member coupled to the outlet; and actuating the restrictor member to selectively restrict at least a portion of one or more lumens to thereby adjust the flow rate of fluid flowing from the reservoir. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification